The question is often asked as to whether the Jewish calendar is lunar ... of the leap year before there was a set calendar. Rav Moshe Tendler once explained this very succinctly.

Passover began on Saturday and will conclude on Sunday, April 20. The week-long holiday celebrates the liberation of Israelites from Egypt slavery.

There’s a long-running debate among observant Jews about whether it is appropriate, in Jewish law ... national tragedy on its anniversary, the calendar ... Insisting that only the violence ...